= Realistic Camera - Lens Flares and Bokehs =

My idea is to extend
the realistic camera model in order to simulate some of the
lens-internals related phenomenas in real cameras: lens flares, and
bokehs.

A neat final image could feature the Hoover Tower:
attachment:mob106_1158392772.jpg

Other examples of nice flares are:
attachment:Mt_Buller_1600.jpg
attachment:flare.jpg
http://www.flickr.com/search/?q=lens+flare

Examples of bokehs are:

http://www.flickr.com/search/?q=bokeh

To do that, I would add to our lens model, support for reflection and
scattering, as well as the wavelength-dependency of these laws. Other
minor extensions to the realistic camera model would include
implementing the size of the aperture (often hexagonal) which causes
artifacts of the same shape on the picture. The goal would be to
obtain "physically-realistic" pictures of lens flares and bokehs,
which I would compare to the "empirical" lens flares that have
been used in videogames for a long time.

attachment:cobalt_crash.jpg
An example of an "empirical" lens flare effect.

===== References =====
 1. http://en.wikipedia.org/wiki/Lens_flare

 2. http://en.wikipedia.org/wiki/Bokeh